*/
/**
- * @class Ext.chart.Chart
- * @extends Ext.draw.Component
- *
- * The Ext.chart package provides the capability to visualize data.
- * Each chart binds directly to an Ext.data.Store enabling automatic updates of the chart.
- * A chart configuration object has some overall styling options as well as an array of axes
- * and series. A chart instance example could look like:
- *
- <pre><code>
- Ext.create('Ext.chart.Chart', {
- renderTo: Ext.getBody(),
- width: 800,
- height: 600,
- animate: true,
- store: store1,
- shadow: true,
- theme: 'Category1',
- legend: {
- position: 'right'
- },
- axes: [ ...some axes options... ],
- series: [ ...some series options... ]
- });
- </code></pre>
- *
- * In this example we set the `width` and `height` of the chart, we decide whether our series are
- * animated or not and we select a store to be bound to the chart. We also turn on shadows for all series,
- * select a color theme `Category1` for coloring the series, set the legend to the right part of the chart and
- * then tell the chart to render itself in the body element of the document. For more information about the axes and
- * series configurations please check the documentation of each series (Line, Bar, Pie, etc).
+ * Charts provide a flexible way to achieve a wide range of data visualization capablitities.
+ * Each Chart gets its data directly from a {@link Ext.data.Store Store}, and automatically
+ * updates its display whenever data in the Store changes. In addition, the look and feel
+ * of a Chart can be customized using {@link Ext.chart.theme.Theme Theme}s.
+ *
+ * ## Creating a Simple Chart
+ *
+ * Every Chart has three key parts - a {@link Ext.data.Store Store} that contains the data,
+ * an array of {@link Ext.chart.axis.Axis Axes} which define the boundaries of the Chart,
+ * and one or more {@link Ext.chart.series.Series Series} to handle the visual rendering of the data points.
+ *
+ * ### 1. Creating a Store
+ *
+ * The first step is to create a {@link Ext.data.Model Model} that represents the type of
+ * data that will be displayed in the Chart. For example the data for a chart that displays
+ * a weather forecast could be represented as a series of "WeatherPoint" data points with
+ * two fields - "temperature", and "date":
+ *
+ * Ext.define('WeatherPoint', {
+ * extend: 'Ext.data.Model',
+ * fields: ['temperature', 'date']
+ * });
+ *
+ * Next a {@link Ext.data.Store Store} must be created. The store contains a collection of "WeatherPoint" Model instances.
+ * The data could be loaded dynamically, but for sake of ease this example uses inline data:
+ *
+ * var store = Ext.create('Ext.data.Store', {
+ * model: 'WeatherPoint',
+ * data: [
+ * { temperature: 58, date: new Date(2011, 1, 1, 8) },
+ * { temperature: 63, date: new Date(2011, 1, 1, 9) },
+ * { temperature: 73, date: new Date(2011, 1, 1, 10) },
+ * { temperature: 78, date: new Date(2011, 1, 1, 11) },
+ * { temperature: 81, date: new Date(2011, 1, 1, 12) }
+ * ]
+ * });
+ *
+ * For additional information on Models and Stores please refer to the [Data Guide](#/guide/data).
+ *
+ * ### 2. Creating the Chart object
+ *
+ * Now that a Store has been created it can be used in a Chart:
+ *
+ * Ext.create('Ext.chart.Chart', {
+ * renderTo: Ext.getBody(),
+ * width: 400,
+ * height: 300,
+ * store: store
+ * });
+ *
+ * That's all it takes to create a Chart instance that is backed by a Store.
+ * However, if the above code is run in a browser, a blank screen will be displayed.
+ * This is because the two pieces that are responsible for the visual display,
+ * the Chart's {@link #cfg-axes axes} and {@link #cfg-series series}, have not yet been defined.
+ *
+ * ### 3. Configuring the Axes
+ *
+ * {@link Ext.chart.axis.Axis Axes} are the lines that define the boundaries of the data points that a Chart can display.
+ * This example uses one of the most common Axes configurations - a horizontal "x" axis, and a vertical "y" axis:
+ *
+ * Ext.create('Ext.chart.Chart', {
+ * ...
+ * axes: [
+ * {
+ * title: 'Temperature',
+ * type: 'Numeric',
+ * position: 'left',
+ * fields: ['temperature'],
+ * minimum: 0,
+ * maximum: 100
+ * },
+ * {
+ * title: 'Time',
+ * type: 'Time',
+ * position: 'bottom',
+ * fields: ['date'],
+ * dateFormat: 'ga'
+ * }
+ * ]
+ * });
+ *
+ * The "Temperature" axis is a vertical {@link Ext.chart.axis.Numeric Numeric Axis} and is positioned on the left edge of the Chart.
+ * It represents the bounds of the data contained in the "WeatherPoint" Model's "temperature" field that was
+ * defined above. The minimum value for this axis is "0", and the maximum is "100".
+ *
+ * The horizontal axis is a {@link Ext.chart.axis.Time Time Axis} and is positioned on the bottom edge of the Chart.
+ * It represents the bounds of the data contained in the "WeatherPoint" Model's "date" field.
+ * The {@link Ext.chart.axis.Time#cfg-dateFormat dateFormat}
+ * configuration tells the Time Axis how to format it's labels.
+ *
+ * Here's what the Chart looks like now that it has its Axes configured:
+ *
+ * {@img Ext.chart.Chart/Ext.chart.Chart1.png Chart Axes}
+ *
+ * ### 4. Configuring the Series
+ *
+ * The final step in creating a simple Chart is to configure one or more {@link Ext.chart.series.Series Series}.
+ * Series are responsible for the visual representation of the data points contained in the Store.
+ * This example only has one Series:
+ *
+ * Ext.create('Ext.chart.Chart', {
+ * ...
+ * axes: [
+ * ...
+ * ],
+ * series: [
+ * {
+ * type: 'line',
+ * xField: 'date',
+ * yField: 'temperature'
+ * }
+ * ]
+ * });
+ *
+ * This Series is a {@link Ext.chart.series.Line Line Series}, and it uses the "date" and "temperature" fields
+ * from the "WeatherPoint" Models in the Store to plot its data points:
+ *
+ * {@img Ext.chart.Chart/Ext.chart.Chart2.png Line Series}
+ *
+ * See the [Simple Chart Example](doc-resources/Ext.chart.Chart/examples/simple_chart/index.html) for a live demo.
+ *
+ * ## Themes
+ *
+ * The color scheme for a Chart can be easily changed using the {@link #cfg-theme theme} configuration option:
+ *
+ * Ext.create('Ext.chart.Chart', {
+ * ...
+ * theme: 'Green',
+ * ...
+ * });
+ *
+ * {@img Ext.chart.Chart/Ext.chart.Chart3.png Green Theme}
+ *
+ * For more information on Charts please refer to the [Drawing and Charting Guide](#/guide/drawing_and_charting).
+ *
*/
Ext.define('Ext.chart.Chart', {
viewBox: false,
/**
- * @cfg {String} theme (optional) The name of the theme to be used. A theme defines the colors and
- * other visual displays of tick marks on axis, text, title text, line colors, marker colors and styles, etc.
- * Possible theme values are 'Base', 'Green', 'Sky', 'Red', 'Purple', 'Blue', 'Yellow' and also six category themes
- * 'Category1' to 'Category6'. Default value is 'Base'.
+ * @cfg {String} theme
+ * The name of the theme to be used. A theme defines the colors and other visual displays of tick marks
+ * on axis, text, title text, line colors, marker colors and styles, etc. Possible theme values are 'Base', 'Green',
+ * 'Sky', 'Red', 'Purple', 'Blue', 'Yellow' and also six category themes 'Category1' to 'Category6'. Default value
+ * is 'Base'.
*/
/**
- * @cfg {Boolean/Object} animate (optional) true for the default animation (easing: 'ease' and duration: 500)
- * or a standard animation config object to be used for default chart animations. Defaults to false.
+ * @cfg {Boolean/Object} animate
+ * True for the default animation (easing: 'ease' and duration: 500) or a standard animation config
+ * object to be used for default chart animations. Defaults to false.
*/
animate: false,
/**
- * @cfg {Boolean/Object} legend (optional) true for the default legend display or a legend config object. Defaults to false.
+ * @cfg {Boolean/Object} legend
+ * True for the default legend display or a legend config object. Defaults to false.
*/
legend: false,
/**
- * @cfg {integer} insetPadding (optional) Set the amount of inset padding in pixels for the chart. Defaults to 10.
+ * @cfg {Number} insetPadding
+ * The amount of inset padding in pixels for the chart. Defaults to 10.
*/
insetPadding: 10,
/**
- * @cfg {Array} enginePriority
- * Defines the priority order for which Surface implementation to use. The first
- * one supported by the current environment will be used.
+ * @cfg {String[]} enginePriority
+ * Defines the priority order for which Surface implementation to use. The first one supported by the current
+ * environment will be used. Defaults to `['Svg', 'Vml']`.
*/
enginePriority: ['Svg', 'Vml'],
/**
- * @cfg {Object|Boolean} background (optional) Set the chart background. This can be a gradient object, image, or color.
- * Defaults to false for no background.
+ * @cfg {Object/Boolean} background
+ * The chart background. This can be a gradient object, image, or color. Defaults to false for no
+ * background. For example, if `background` were to be a color we could set the object as
*
- * For example, if `background` were to be a color we could set the object as
+ * background: {
+ * //color string
+ * fill: '#ccc'
+ * }
*
- <pre><code>
- background: {
- //color string
- fill: '#ccc'
- }
- </code></pre>
-
- You can specify an image by using:
-
- <pre><code>
- background: {
- image: 'http://path.to.image/'
- }
- </code></pre>
-
- Also you can specify a gradient by using the gradient object syntax:
-
- <pre><code>
- background: {
- gradient: {
- id: 'gradientId',
- angle: 45,
- stops: {
- 0: {
- color: '#555'
- }
- 100: {
- color: '#ddd'
- }
- }
- }
- }
- </code></pre>
+ * You can specify an image by using:
+ *
+ * background: {
+ * image: 'http://path.to.image/'
+ * }
+ *
+ * Also you can specify a gradient by using the gradient object syntax:
+ *
+ * background: {
+ * gradient: {
+ * id: 'gradientId',
+ * angle: 45,
+ * stops: {
+ * 0: {
+ * color: '#555'
+ * }
+ * 100: {
+ * color: '#ddd'
+ * }
+ * }
+ * }
+ * }
*/
background: false,
/**
- * @cfg {Array} gradients (optional) Define a set of gradients that can be used as `fill` property in sprites.
- * The gradients array is an array of objects with the following properties:
+ * @cfg {Object[]} gradients
+ * Define a set of gradients that can be used as `fill` property in sprites. The gradients array is an
+ * array of objects with the following properties:
*
- * <ul>
- * <li><strong>id</strong> - string - The unique name of the gradient.</li>
- * <li><strong>angle</strong> - number, optional - The angle of the gradient in degrees.</li>
- * <li><strong>stops</strong> - object - An object with numbers as keys (from 0 to 100) and style objects
- * as values</li>
- * </ul>
+ * - **id** - string - The unique name of the gradient.
+ * - **angle** - number, optional - The angle of the gradient in degrees.
+ * - **stops** - object - An object with numbers as keys (from 0 to 100) and style objects as values
*
+ * For example:
+ *
+ * gradients: [{
+ * id: 'gradientId',
+ * angle: 45,
+ * stops: {
+ * 0: {
+ * color: '#555'
+ * },
+ * 100: {
+ * color: '#ddd'
+ * }
+ * }
+ * }, {
+ * id: 'gradientId2',
+ * angle: 0,
+ * stops: {
+ * 0: {
+ * color: '#590'
+ * },
+ * 20: {
+ * color: '#599'
+ * },
+ * 100: {
+ * color: '#ddd'
+ * }
+ * }
+ * }]
+ *
+ * Then the sprites can use `gradientId` and `gradientId2` by setting the fill attributes to those ids, for example:
+ *
+ * sprite.setAttributes({
+ * fill: 'url(#gradientId)'
+ * }, true);
+ */
- For example:
-
- <pre><code>
- gradients: [{
- id: 'gradientId',
- angle: 45,
- stops: {
- 0: {
- color: '#555'
- },
- 100: {
- color: '#ddd'
- }
- }
- }, {
- id: 'gradientId2',
- angle: 0,
- stops: {
- 0: {
- color: '#590'
- },
- 20: {
- color: '#599'
- },
- 100: {
- color: '#ddd'
- }
- }
- }]
- </code></pre>
-
- Then the sprites can use `gradientId` and `gradientId2` by setting the fill attributes to those ids, for example:
-
- <pre><code>
- sprite.setAttributes({
- fill: 'url(#gradientId)'
- }, true);
- </code></pre>
+ /**
+ * @cfg {Ext.data.Store} store
+ * The store that supplies data to this chart.
+ */
+ /**
+ * @cfg {Ext.chart.series.Series[]} series
+ * Array of {@link Ext.chart.series.Series Series} instances or config objects. For example:
+ *
+ * series: [{
+ * type: 'column',
+ * axis: 'left',
+ * listeners: {
+ * 'afterrender': function() {
+ * console('afterrender');
+ * }
+ * },
+ * xField: 'category',
+ * yField: 'data1'
+ * }]
*/
+ /**
+ * @cfg {Ext.chart.axis.Axis[]} axes
+ * Array of {@link Ext.chart.axis.Axis Axis} instances or config objects. For example:
+ *
+ * axes: [{
+ * type: 'Numeric',
+ * position: 'left',
+ * fields: ['data1'],
+ * title: 'Number of Hits',
+ * minimum: 0,
+ * //one minor tick between two major ticks
+ * minorTickSteps: 1
+ * }, {
+ * type: 'Category',
+ * position: 'bottom',
+ * fields: ['name'],
+ * title: 'Month of the Year'
+ * }]
+ */
constructor: function(config) {
var me = this,
defaultAnim;
+
+ config = Ext.apply({}, config);
me.initTheme(config.theme || me.theme);
if (me.gradients) {
Ext.apply(config, { gradients: me.gradients });
me.mixins.navigation.constructor.call(me, config);
me.callParent([config]);
},
+
+ getChartStore: function(){
+ return this.substore || this.store;
+ },
initComponent: function() {
var me = this,
'itemdrag',
'itemdragend',
/**
- * @event beforerefresh
- * Fires before a refresh to the chart data is called. If the beforerefresh handler returns
- * <tt>false</tt> the {@link #refresh} action will be cancelled.
- * @param {Chart} this
- */
+ * @event beforerefresh
+ * Fires before a refresh to the chart data is called. If the beforerefresh handler returns false the
+ * {@link #refresh} action will be cancelled.
+ * @param {Ext.chart.Chart} this
+ */
'beforerefresh',
/**
- * @event refresh
- * Fires after the chart data has been refreshed.
- * @param {Chart} this
- */
+ * @event refresh
+ * Fires after the chart data has been refreshed.
+ * @param {Ext.chart.Chart} this
+ */
'refresh'
);
Ext.applyIf(me, {
},
/**
- * Redraw the chart. If animations are set this will animate the chart too.
- * @cfg {boolean} resize Optional flag which changes the default origin points of the chart for animations.
+ * Redraws the chart. If animations are set this will animate the chart too.
+ * @param {Boolean} resize (optional) flag which changes the default origin points of the chart for animations.
*/
redraw: function(resize) {
var me = this,
// @private
refresh: function() {
var me = this;
- if (me.rendered && me.curWidth != undefined && me.curHeight != undefined) {
+ if (me.rendered && me.curWidth !== undefined && me.curHeight !== undefined) {
if (me.fireEvent('beforerefresh', me) !== false) {
me.redraw();
me.fireEvent('refresh', me);
/**
* Changes the data store bound to this chart and refreshes it.
- * @param {Store} store The store to bind to this chart
+ * @param {Ext.data.Store} store The store to bind to this chart
*/
bindStore: function(store, initial) {
var me = this;
if (!initial && me.store) {
if (store !== me.store && me.store.autoDestroy) {
- me.store.destroy();
+ me.store.destroyStore();
}
else {
me.store.un('datachanged', me.refresh, me);
// @private remove gently.
destroy: function() {
- this.surface.destroy();
+ Ext.destroy(this.surface);
this.bindStore(null);
this.callParent(arguments);
}
git.ithinksw.org / extjs.git / blobdiff